The mean (±SD) whole-grain intakes (in g/d) from foods with various whole-grain concentrations . The high-whole-grain foods (whole-grain content by weight) that contributed most to intake (in g/d) included select cold breakfast cereals, brown rice, cooked oatmeal, and popcorn. Of the participants who reported eating breakfast cereals (76.3% of the cohort), 44.2% reported eating breakfast cereals with ≥51% whole-grain content by weight, 26% reported eating breakfast cereals with 25–50% whole-grain content by weight, and 29.7% reported eating refined-grain cereals (